baber/WOPTO huggingface dataset:
Patent ES-2572535-B1 (ES)
Title: Procedimiento y sistema para gestionar la transferencia de usuarios asignados, entre elementos de redes IMS
Inventor: VIDAL FERNANDEZ IVÁN
IPC: H04L29/06
Filed: 2014-12-01
Granted: 2017-03-10
Abstract: Procedimiento y sistema para gestionar la transferencia de usuarios asignados entre elementos de redes IMS.#La presente invención propone un procedimiento y sistema que añade capacidad de adaptación y recuperación a una red IMS, permitiendo transferir usuarios de un primer elemento funcional como un CSCF (incluso cuando es virtual) a otro. Esta transferencia está gestionada por nuevos elementos funcionales de la red que se encargan, entre otras acciones, de determinar qué usuarios están asignados al primer CSCF, qué usuarios se van a transferir, a qué otro CSCF van a ser transferidos e informar a los equipos de los usuarios afectados. Así, la presente invención permite a los operadores de red realizar balanceo de la carga de usuarios de distintos elementos (si por ejemplo, alguno está saturado o para aprovechar mejor los recursos) o liberar recursos de un elemento CSCF para poder desactivarlo (por ejemplo porque está infrautilizado) o porque esté fallando.
Patent ES-2545554-B1 (ES)
Title: Contenedor para productos químicos líquidos y peligrosos
Inventor: MATACHANA ARAMBURU JUAN ANTONIO
IPC: B65D51/16
Filed: 2015-01-21
Granted: 2016-04-13
Abstract: Contenedor para productos químicos líquidos y peligrosos para un usuario. El contenedor (1) comprende una cámara (2) interior, y un conducto (4) de acceso a la cámara (2) interior con una boca exterior (6) y una boca interior (8) y que sobresale hacia el interior de la cámara (2). El contenedor (1) está configurado de manera que cuando la cámara (2) contiene un volumen (V) de producto químico líquido tal que, estando el contenedor (1) apoyado con el conducto (4) en posición vertical sobresaliente hacia arriba sin que el nivel de producto químico líquido sobrepase la boca interior (8), en cualquier posición que adopte el contenedor (1) nunca llega a salir producto químico líquido por el conducto (4). Además, el conducto (4) de acceso está tapado por una membrana (10) hidrófoba y semipermeable.
Patent ES-2592936-B1 (ES)
Title: Válvula de bola con asientos de cierre paralelos
Inventor: BACH CANTENYS CARLES
IPC: F16K5/06
Filed: 2015-06-01
Granted: 2017-08-08
Abstract: Válvula de bola con asientos de cierre paralelos, que comprende un cuerpo (1) provisto de un conducto axial (2), el cual determina un alojamiento (3) en el que se dispone una bola (4) provista con un orificio diametral (5), la cual hace contacto deslizante con estanqueidad sobre unos anillos de asiento (8) que se disponen entre ella y el cuerpo (1) en relación con el conducto axial (2), donde los anillos de asiento (8) van dispuestos paralelos entre sí perpendicularmente respecto del conducto axial (2), estando configurada la bola (4) con unos planos en chaflán (9) en sendas zonas diametralmente opuestas en una dirección perpendicular al orificio diametral (5), los cuales planos en chaflán (9), en combinación con unos planos en chaflán que determinan en una dirección perpendicular las embocaduras del orificio diametral (5), permiten situar la bola (4) en una posición en la que se puede introducir y extraer respecto del alojamiento (3).
Patent ES-2585929-B1 (ES)
Title: Cepa bacteriana de pseudonocardia carboxydivorans productora de branimicinas y branimicinas producidas por la misma
Inventor: FERNANDEZ BRANA ALFREDO JAVIER
IPC: A61K31/365
Filed: 2016-06-07
Granted: 2017-04-20
Abstract: Cepa bacteriana de Pseudonocardia carboxydivorans productora de branimicinas y branimicinas producidas por la misma.#La invención proporciona una nueva cepa bacteriana de Pseudonocardia carboxydivorans que ha sido aislada de su medio natural y depositada en la colección española de cultivos tipo bajo el número de acceso 9108, la cual es capaz de producir eficientemente por fermentación compuestos antibióticos de la familia de las branimicinas. Concretamente, esta cepa es productora de dos nuevas branimicinas, designadas en la presente invención como branimicinas B y C, que presentan actividad antibiótica o antibacteriana in vitro e in vivo frente a bacterias patógenas, preferiblemente humanas, tanto Gram positivas como Gram negativas, preferiblemente resistentes a los antibióticos de uso habitual.
Patent ES-2624202-B1 (ES)
Title: Tapon con tapeta articulada
Inventor: BADIA INIESTA ANTONIO
IPC: B65D47/10
Filed: 2016-01-12
Granted: 2017-10-26
Abstract: Tapón con tapeta articulada.#Tapón de plástico para botella que comprende una caperuza con medios de unión al gollete de la botella en el que el tapón comprende, además, una membrana obturadora de la boca de la botella y en el que la caperuza presenta además una tapeta articulada en su zona superior para la apertura del tapón.
Patent JO-1215-B1 (JO)
Title: animal bedding material
Inventor: GARDNER THOMAS HENRY
Filed: 1982-07-10
Granted: 1985-04-20
Abstract: This invention provides for the bedding of animals, including chickens, on litter consisting of a layer of short strips or pieces of absorbent non-toxic paper. The paper, for example in the form of newspaper sheets, is shredded and the shreds are then cut into short strips or small 'diced' pieces which are used as the bedding material and which have a size distribution such that the pieces congeal and form a surface crust or cake at an early stage of use and subsequently break up to form a readily friable material. The layer may take the form of a 'top dressing' covering an existing bedding material to extend its useful life.
Patent JO-1737-B1 (JO)
Title: Pharmaceutical preparation in the treatment of tonsillitis
Inventor: EVA ELISABETH GRAHN
Filed: 1990-03-01
Granted: 1993-06-15
Abstract: Abstract of corresponding document: WO 9009186 (A1) A pharmaceutical preparation in the prophylaxis against and/or the treatment of beta -streptococcal tonsillitis is described. The preparation includes at least one viable microorganism strain selected from the group consisting of Streptococcus sanguis II strains with the deposit numbers NCIB 40104, NCIB 40105 and NCIB 40106, the Streptococcus mitis strain with the deposit number NCIB 40107 and streptococci strains with essentially the same capacity to inhibit beta -streptococci as the deposited strains, in a pharmaceutically acceptable medium wherein the microorganisms retain their viability. Use of the preparation in the prophylaxis against and/or the treatment of beta -streptococcal tonsillitis is also described.
Patent KR-810000738-B1 (KR)
Title: Process for preparing 5-alkoxy picolinic acid ester
Inventor: HAGES SISUGU
IPC: C07D213/79
Filed: 1977-10-05
Granted: 1981-06-27
Abstract: Title compds.[I; R1 = C1-6 lower alkyl; R2 CH(R3)OCOR4 (R3 = H, Me ; R4 = C1-5 lower alkyl, lower alkoxy, phenyl, substituted phenyl, aralkyl), C6H2R6R7R8(R6,R7,R8 = H, lower alkyl, alkoxy, halogen)  were prepd. by reaction of II(M = H, metal atom) and III(R5 = C1-5 lower fatty acid, alloyl, aralloyl) such as acyloxyalkylhalide, alkoxyalkylhalide and 3-bromophthalide, or reaction II and IV.  Thus, 975mg II(R1 = Bu, M = H) in 20 ml(CH3)2NCHO was reacted with 1.5 g III (X = Cl; R3 = Me; R5 = C4H5) to give 1.38 g I[R2 = C4H5C(Me) (Cl) .
Patent KR-820000606-B1 (KR)
Title: Process for preparing open-cell sponge urbber printing material having small and large interconnected cells
Inventor: FUNAHASHI TAKAJI
IPC: C08J9/26
Filed: 1977-11-07
Granted: 1982-04-16
Abstract: The porous sponge rubber was prepd. by incorporation of a sol. starch and a powd. water-sol. salt, which was not decompd. at the vulcanization temp., into a mixt. containing a rubber, a vulcanizing agent, and a filler, kneading and milling forming, heating and then removing the starch and watersol. salt.  Thus, a compn. contg. a butadiene-nitrile rubber 100, S 3.5, Zn white 5,diphenylguanidine 5, plasticizer 30, carbon black 50, NaCl or Na2SO4 800 and starch 200parts was kneaded and milled, formed, vulcanized 15min at 50oC, washed and dried to give a porous printing roll.
Patent KR-820000459-B1 (KR)
Title: Process for preparation of terephthalic acid
Inventor: HANOTIER J
IPC: C07C51/255
Filed: 1978-02-01
Granted: 1982-04-03
Abstract: Terephthalic acid was prepd. by oxidn. of a mixt. of pxylene and p-toluic acid in H2O in the presence of at least one heavy metal salt as catalyst.  Thus, a mixt. of p-xylene 100, p-toluic acid 180 and H2O 150 g contg.  Co naphthenate 7.5 and Mn naphthenate 0.75 mmol was pressured with air to 20 atm and heated to <=185≰C, 250 min to give terephthalic acid 182, p-toluic acid 118, and 4-HO2CC6H4CHO 7 g.  Omitting the Mn salt gave decreased O2 absorption and decreased amts. of terephthalic acid.
Patent KR-820000984-B1 (KR)
Title: Data register
Inventor: HALM H
IPC: B42F17/30
Filed: 1978-05-20
Granted: 1982-06-04
Abstract: A selector keys connected with the swivel levers are arranged one behind the other and alongside one another in an opening of the housing (10) in such a way that the width of each selector key corresponds to the width of the swivel levers. Card restrainingpins on each swivel lever are formed from U-shaped portions shaped onto the swivel lever end with a rod which engages from below in the register card opening. The drawer (30) are open at the back and at both sides, whereby the two lateral drawer limiting walls are formed by two boundary walls shaped onto the inner wall surface of the housing cover (11) and on either side of the plate-shapped drawer base.
Patent KR-830001176-B1 (KR)
Title: Malfunction detecting system
Inventor: FUKUYAMA HIROOMI
IPC: G05B9/02
Filed: 1979-04-28
Granted: 1983-06-20
Abstract: The malfunction detecting system detects the malfunction of an error register, an interpolator, and a servo-type velocity control by detecting whether the error within a servotype exceeds a specified value or not after distribution instruction directs 'turn off', and a certain period of time passes. When the error exceeds the specified value, the system utters an alarm.
Patent KR-820000848-B1 (KR)
Title: Pocess for preparing amino-thiazole derivatives
Inventor: LOMBARDINO J
IPC: C07D277/42
Filed: 1979-06-01
Granted: 1982-05-17
Abstract: The thiazoles I ≮R1 = -CH(X)X1, -(CH2)n-X, -CH2-CH2-NH-X,-(CH2)mY; X = Ph, C1-3 alkyl, OH, C1, Br, substituted phenyl; Y = thienyl, furyl; n,m = 1, 2; R2 = Ph, p-fluorophenyl; R3 =H, Ph≉and their salts were prepd. for use as antiinflammatory agents and immunoregulators. Thus, 1.25 mol N-phenethyl thiourea and 1.25 mol α-bromoacetophenone were refluxed in 1500 m1 anhydrous EtOH for 2.5 hr to give 81% 2-phenethylamino-4-phenylthiazoleHBr(m.p. 169-172≰C).
Patent KR-830001853-B1 (KR)
Title: 투명평판 스피커
IPC: H04R17/00
Filed: 1980-06-14
Granted: 1983-09-14
Abstract: 내용 없음.
Patent KR-840001703-B1 (KR)
Title: Process for the manufacture of shrink articles
Inventor: VOIGT HERMANN UWE
IPC: B29C61/02
Filed: 1980-10-08
Granted: 1984-10-16
Abstract: A manufacturing method for shrinkable articles involves blending (olefin) polym,ers with silanes; grafting silanes on the polymers; forming the grafted materials into a parison; cross-linking the pariosn using water; heating and expanding the cross-linked parison; cooling it and keeping it in an expanded state to produce shrinkable articles, such as tubes, slips, and caps.
Patent KR-830001989-B1 (KR)
Title: 전원회로
IPC: G05F1/56
Filed: 1980-10-21
Granted: 1983-10-04
Abstract: 내용 없음.
Patent KR-870001189-B1 (KR)
Title: System for multilingual communication of computer specified aural or visual control massages in an operator-derignated language
Inventor: JAMNIK DONALD J
IPC: G06F9/44
Filed: 1981-08-07
Granted: 1987-06-16
Abstract: The appts. includes a memory for storing a number of sets of control messages each written in a particular language.  An electronic processor is coupled to the memory and is responsive to operator commands for retrieving a selected set of messages written in a language designated by the operator, the processor being responsive to codes indicative of a required message pref. the processor extracts the complete set of messages in the selected language from the first memory and transmits this set to a second memory.
Patent KR-890000593-B1 (KR)
Title: Drilling machine with stepfeed function
Inventor: AOSHIMA SHOZO
IPC: B23B47/18
Filed: 1981-10-16
Granted: 1989-03-21
Abstract: The drilling machine has a feed device for reciprocating a quill, a driving member and a driven member, disposed between a spindle rotatably supported by the quill and a driving source. Angular displacement is effected according to magnitude of a load applied on a tool held by the spindle.  A detector generates a series of pulse signals correlated to the relative angular displacement between both members.  The pulse signals are generated from the detector in respect of one rotation of the spindle.  A memory stores numerical data, corresp. to the relative angular displacement while the tool being separated from a workpiece, counted by the counter.
Patent KR-850000086-B1 (KR)
Title: One time's cosmetic
Inventor: KWEON O-MIN
IPC: A45D40/00
Filed: 1982-11-01
Granted: 1985-02-22
Abstract: The purpose of the device is to carry cosmetics conveniently and economically and dispense them in a saintary manner, by adhering the cosmetic to a toilon or a sponge and placing it in a packing paper and a waterproof case or by pouring or spreading enough cosmetic for a single use on a toilon or a sponge. Cosmetic for a single use adheres respectively to a toilon(30,31) or a sponge(50,51) using an adhesive agent(20,21) located in the waterproof packing case. The manufacturer can combine solid or powdered cosmetics(40) between toilons, pour liquid cosmetios(41) onto a sponge(50,51), and combines both cases(10,11).
Patent KR-860000129-B1 (KR)
Title: Casting tire and its process and apparatus
Inventor: YOM DONG-SONG
IPC: B29D30/08
Filed: 1983-04-29
Granted: 1986-02-26
Abstract: A casting tire consists of beads(1, 1'), a bead immersion section(2, 2'), a body(3), a supporter(4) and a tread portion(5). A bead is made of an inflexible material like steel wire. The body is made of polyurethane, which has middle strain and high flexibility. (4) is a hyperglass coated by low strain polyurethan. (5) is made of polyurethane with a low strain and heating value. The rugged portion(A, A') improves the connection of the tire body with the tread portion. This provides a flexible insert body mold. For this casting tire, fluid state polyurethand is used.
Patent KR-920008488-B1 (KR)
Inventor: SAKAKIBARA TATSUO
IPC: B23B19/02
Filed: 1983-11-01
Granted: 1992-09-30
Abstract: 내용 없음.
Patent KR-870001304-B1 (KR)
Title: Display system
Inventor: FUJISAKU KIMINORI
IPC: G09G5/40
Filed: 1983-11-17
Granted: 1987-07-11
Abstract: The system comprises a graphic image memory(3) for storage of data such as diagrams, a character image memory(4) for storage of data such as letters and symbols, and display selection and combination circuits(6,7) connected to the two summaries and having outputs to two independent display units (CRT1-2).  Data stored in the memories is serially outputted to the display selection circuit for display in response to instructions from a timing controller(2).  The display content is selected or changed by keyboard operation, causing a central processing unit(1) to send selection signal to a control register(6).
Patent KR-880001053-B1 (KR)
Title: Process for preparing alpha-substituted-alkylarylketals
Inventor: CASTALDI GRAZIANO
IPC: C07D321/06
Filed: 1983-08-06
Granted: 1988-06-18
Abstract: Alpha substituted alkylarylketals of formula:whereinAr is an aromatic radical having from 3 to 20 C atoms,X is halogen, OR<sub>3</sub> (wherein R<sub>3</sub> is H, acyl or aroyl), OSO<sub>2</sub>CH<sub>3</sub> or OSO<sub>2</sub>C<sub>6</sub>H<sub>4</sub>-CH<sub>3</sub>,R is H or alkyl having from 1 to 3 C atoms,Y is -CH<sub>2</sub>-C(R<sub>1</sub>) = C(R<sub>2</sub>)-CH<sub>2</sub>- (wherein, in turn, R, and R<sub>2</sub> are H or methyl).The products of formula I are useful for preparing alpha-arylalkanoic acids.
Patent KR-860001650-B1 (KR)
Title: Aluminum resistant refractory composition
Inventor: FELICE FRANK T
IPC: C04B35/63
Filed: 1984-03-03
Granted: 1986-10-15
Abstract: A refractory compn. resistant to molten aluminium has a slag addition contg. crystalline aluminium-boron oxide compds. It comprises 45-90 wt.% of a refractory aggregate, 3-40 wt.% of a binder, and 1-12 wt.% of an additive contg. crystalline 9Al2O3.2B2O3. The binder is selected from calcium aluminate, cement, aluminium phosphate, phosphoric acid, alkali silicates, and clay. The refractory particles are selected from chrome ore, bauxite, tabular alumina, silica, spinel, magnesia-chrome, mullite, expanded clay and shale.
Patent KR-860000473-B1 (KR)
Title: Positive photo-resist composition
Inventor: LEWIS JAMES MARVIN
IPC: G03F7/16
Filed: 1984-05-21
Granted: 1986-04-28
Abstract: The positive photoresist compn. contains photosensitiser, resin and solvent mixt. of a cyclic ketone and aliphatic alcohol. The compn. of soln. is as follows: a diazo ketone photosensitive compd; an alkali solluble resin; a cyclic ketone solvent from cyclopentanone, or a mixt. of cylopentanone and cyclohexanone; a 5 - 12 C aliphatic alcohol solvent. The cyclic ketone forms at least 20 % of the total solvent and the alcohol forms at least 10 % of the total solvent. The compn. has good wetting property and low incidence of striation.
Patent KR-900000344-B1 (KR)
Title: Method and device for processing radioactive resin waste
Inventor: YUSA HIDEO
IPC: G21F9/00
Filed: 1984-05-26
Granted: 1990-01-25
Abstract: A method for treating a radioactive waste resin by pyrolyzing a radioactive waste ion-exchange resin generated in a nuclear plant comprises pyrolytically decomposing ion-exchange gps. in the resin at a low temp. so that the polymeric skeleton of the resin is not decomposed, separating the resulting decomposition gas, decomposing the polymeric skeleton of the  resin at a high temp., separating the resulting decomposition gas, and hot-pressing the residue of the resin into a molded article.
Patent KR-890002783-B1 (KR)
Title: Tunnel kiln
Inventor: YAMADA HIDEHIKO
IPC: C03B29/08
Filed: 1985-01-10
Granted: 1989-07-28
Abstract: The roller tunnel kiln includes a kiln body (11) divided into several sections in a longitudinal direction in which articles and fed along.  Each of the sections is composed of an upper kiln body half (12) of an integral construction comprising a ceiling and a pair of upper side wall halves made of refractory brick, and a lower kiln body half (13)of an integral construction comprising a bottom and a pair of lower side wall halves.  Between the upper and lower kiln body halves, there is a defined clearance having a vertical dimension large enough to allow feed device e.g. porceloin rollers having a length larger than the width of the lower kiln body half.
Patent KR-930003865-B1 (KR)
Inventor: BELLIS HAROLD E
IPC: C07C233/05
Filed: 1985-01-10
Granted: 1993-05-14
Abstract: 내용 없음
Patent KR-900000189-B1 (KR)
Title: Flame-retardant composition
Inventor: HASEKAWA MASATAKE
IPC: H01B7/295
Filed: 1985-03-29
Granted: 1990-01-23
Abstract: A flame-retardant compsn. is prepd. by mxing 100 wt.% halogen-free rubber or plastic with 50-200 wt.% Mg(OH)2 having an average particle dia. 0.3-2 micron and 5-50 wt.% carbon black powder having an oil adsorption of 0.5-2.0 ml/g, and crosslinking the mixt. with organic peroxide, S, S cpd. or valcanizing agent. The compsn. has excellent mechanical properties, and is used in the manufacture of an electric cable.
Patent KR-900002538-B1 (KR)
Title: Composite over head transmission cable
Inventor: KITAYAMA YOSHINOBU
IPC: H01B11/22
Filed: 1985-04-09
Granted: 1990-04-20
Abstract: A composite overhead transmission power cable comprises standard conductors wound around an optical fibre protective tube (4). The tube accommodates glass optical fibres and/or optical fibre bundles which are located within spiral grooves (2) formed in the periphery of a spacer (1) sealingly accommodated in the tube. Fluorine doping (12) is provided exclusively in a cladding of the optical fibres to suppress formation of OH gps. due to hydrogen gas diffusing from the tube and reacting with defects in optical fibres.
Patent KR-880002570-B1 (KR)
Title: Gas combustion type fan heater
Inventor: KONDO YUJI
IPC: F23N5/20
Filed: 1985-04-18
Granted: 1988-11-30
Abstract: A gas-fired air heater consists of a gas burner (104), a proportional control valve (205) for continuously controlling the flow rate of gas, a main valve (202) provided for starting and stopping the supply of gas, a bypass (207) for supplying gas at a predetermined flow rate to the burner even when the proportional control valve is closed, and an electronic control circuit (4). The control cct. consists of a control cct. for controlling the proportional control valve, and a timer cct. adapted to change a reference value set by the temperature setter or the voltage of an output signal from the heat-sensitive element for a predetermined period of timer after the ignition of the gas burner has been detected.
Patent KR-870001577-B1 (KR)
Title: Covering composition for napkin
Inventor: LEE MYONG-OK
IPC: D21H21/00
Filed: 1985-07-19
Granted: 1987-09-04
Abstract: This invention relates to the pollution free, porous composition for coatining napkin.  The composition is as follows; the cellulose obtained by finely arinding the waste cellulose cup is the main component, and other components are a placitater 15-20% and an organic solvent 10-25% and a non-ionic surface active agent 1-5% and PVA (polyvinyl alcohol) 1-2% diluted with 40-50% water.
Patent KR-870001600-B1 (KR)
Title: Plastic filoers making method
Inventor: MAZUMIYA NORIHUMI
IPC: G02B6/00
Filed: 1985-08-07
Granted: 1987-09-10
Abstract: A process for producing plastic fibers comprises (i) bulk polymn. of monomers(to give amorphous polymer or copolymer), (ii) removal of residual volatiles in polymer or copolymer with simultaneous melt- sprinning, and (iii) heating or applying radioactive-ray irradiation.  Process (i) or (ii) employs multifunctional reactant i.e. ethyleneglycole, diarylcarbonate, triary lisocyanurte.  The plastic fibers obatined are useful for cords and cables with coating.
Patent KR-940001311-B1 (KR)
Inventor: OTFINOSKI WILLIAM F
IPC: C23C26/00
Filed: 1985-12-23
Granted: 1994-02-19
Abstract: 내용 없음.
Patent KR-930004816-B1 (KR)
Inventor: FILIPPIS PIETRO DE
IPC: H01H81/02
Filed: 1986-03-14
Granted: 1993-06-08
Abstract: 내용 없음.
Patent KR-900008297-B1 (KR)
Title: Color recording apparatus
Inventor: KIMURA TOSIO
IPC: G01B17/00
Filed: 1986-03-25
Granted: 1990-11-12
Abstract: The apparauts comprises a carriage movable in the width direction. A driving mechanism causes the ribbon cassette to rotate and bring one colured ribbon in position between the hammer and the recording sheet for effecting recording and move the cassette away from the recording sheet after recording. The recorded data is read without inteference of the cassette with the reading. A bar graph for the analog signals as represented by the differnet colured ribbons is displayed.
Patent KR-920004513-B1 (KR)
Inventor: DANAKA NORIDOSHI
IPC: F02M59/28
Filed: 1986-03-26
Granted: 1992-06-08
Abstract: 내용 없음.
Patent KR-900000916-B1 (KR)
Title: Lubricating oil composition
Inventor: CEDRIC COHEN S
IPC: C10N30/08
Filed: 1986-07-03
Granted: 1990-02-19
Abstract: Lubricants based on hydrotreated oils, poly-alpha-olefin oils or paraffinic white oils contain an antioxidant which is a synergistic mixt. OH-free alkyl, aryl or alkylaryl phosphite or diphosphite of formula (Ia), (Ib) and a sterically hindered phenol of formula (IIa), (IIb).  (Ia), (Ib), (IIa) and (IIb) must have low volatility, i.e. exhibit no more than 5% wt. loss blow 180≰C and 50% wt. loss above 300≰C when subject to TGA by heating in air at a rate of 10-20 C/min.  (Ia) and (Ib) must also be hydrolytically stable in the ASTM D2619 test.  In the formuras, R1 and R2 are C3-6 alkyl in (Ia) and (Ib); R1 and R2 are isopropyl or tert. butyl; n is 2,3 or 4 in (IIa) and (IIb) .